Games like Mech Havoc
Games like Mech Havoc include Brigador: Up-Armored Edition, Door Kickers, Police Stories, Halo: Spartan Assault, and Hardspace: Shipbreaker. We matched them by the tags players give Mech Havoc on Steam (Mechs, Physics, Top-Down Shooter, Strategy, and Simulation): closest matches first, and among equally close ones the better-known games.

Brigador: Up-Armored Edition
Shared: Mechs · Top-Down Shooter · Twin Stick Shooter

Door Kickers
Shared: Strategy · Simulation · Top-Down

Police Stories
Shared: Strategy · Top-Down Shooter · Simulation

Halo: Spartan Assault
Shared: Top-Down Shooter · Action · Sci-fi

Hardspace: Shipbreaker
Shared: Physics · Simulation · Sci-fi

BeamNG.drive
Shared: Physics · Simulation · Destruction

People Playground
Shared: Physics · Simulation · Destruction

Totally Accurate Battle Simulator
Shared: Simulation · Physics · Strategy

Teardown
Shared: Physics · Destruction · Strategy

X-Morph: Defense
Shared: Strategy · Action · Sci-fi

HELLDIVERS™ Dive Harder Edition
Shared: Top-Down Shooter · Twin Stick Shooter · Action

Phantom Brigade
Shared: Mechs · Simulation · Strategy

MechWarrior 5: Mercenaries
Shared: Mechs · Simulation · Action

BattleTech
Shared: Mechs · Strategy · Sci-fi

Forts
Shared: Physics · Strategy · Destruction

Instruments of Destruction
Shared: Physics · Destruction · Simulation

Titanfall® 2
Shared: Mechs · Shooter · Sci-fi

Galactic Glitch
Shared: Physics · Top-Down Shooter · Twin Stick Shooter

ShellShock Live
Shared: Strategy · Action · 2D

Total Tank Simulator
Shared: Strategy · Simulation · Action

Wreckfest
Shared: Simulation · Physics · Destruction

We Who Are About To Die
Shared: Strategy · Physics · Simulation

FTL: Faster Than Light
Shared: Strategy · Sci-fi · Simulation

Goat Simulator
Shared: Simulation · Physics · Destruction